11457247 has 4 divisors (see below), whose sum is σ = 12060280. Its totient is φ = 10854216.

The previous prime is 11457241. The next prime is 11457263. The reversal of 11457247 is 74275411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11457247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11457241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301488 + ... + 301525.

It is an arithmetic number, because the mean of its divisors is an integer number (3015070).

Almost surely, 2^11457247 is an apocalyptic number.

11457247 is a deficient number, since it is larger than the sum of its proper divisors (603033).

11457247 is an equidigital number, since it uses as much as digits as its factorization.

11457247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603032.

The product of its digits is 7840, while the sum is 31.

The square root of 11457247 is about 3384.8555360606. The cubic root of 11457247 is about 225.4378109179.

The spelling of 11457247 in words is "eleven million, four hundred fifty-seven thousand, two hundred forty-seven".